Why does this material crash Blender 2.81a Eevee on OS X El Capitan
OS X El Capitan (10.11) doesn't meet the minimum requirements for Blender 2.8x. You need macOS 10.12 or later and a supported GPU.


  Blender is cross-platform, it runs on every major operating system:
  
  
  Windows 10, 8 and 7
  macOS 10.12+ 
  Linux